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Q. A wave of frequency $500\, Hz$ travels between $X$ and $Y$ and travel a distance of $600\, m$ in $2$ seconds between $X$ and $Y$. How many wavelength are there in distance $XY$ :

Waves

Solution:

Velocity of wave $=\frac{600}{2}=300\, m / s$
Frequency $=500\, Hz$, Wavelength $\lambda=\frac{3}{5} m$
Number of wavelength $=\frac{600}{3 / 5}=1000$